Index: firmware/App/Modes/ModeStandby.c
===================================================================
diff -u -rc0700a4503f28288f16070634bb87f4eccb2568c -rcec14e1b1b636760fcd44ab35f3f45a71a79b776
--- firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision c0700a4503f28288f16070634bb87f4eccb2568c)
+++ firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision cec14e1b1b636760fcd44ab35f3f45a71a79b776)
@@ -190,7 +190,7 @@
         filterFlushStartTime = getMSTimerCount();
         setValveState( VPI, VALVE_STATE_OPEN );
 #ifndef V_2_SYSTEM
-        setValveState( VPD, VALVE_STATE_OPEN_C_TO_NC );
+        setValveState( VPD, VALVE_STATE_DRAIN_C_TO_NO );
 #else
         setValveState( VPD, VALVE_STATE_OPEN );  // TODO: VPD drain state is closed for V3
 #endif